40590636 has 24 divisors (see below), whose sum is σ = 94886400. Its totient is φ = 13505232.

The previous prime is 40590547. The next prime is 40590647. The reversal of 40590636 is 63609504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40590597 and 40590606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4365 + ... + 10011.

It is an arithmetic number, because the mean of its divisors is an integer number (3953600).

Almost surely, 2^40590636 is an apocalyptic number.

It is an amenable number.

40590636 is an abundant number, since it is smaller than the sum of its proper divisors (54295764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40590636 is a wasteful number, since it uses less digits than its factorization.

40590636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253 (or 6251 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 40590636 is about 6371.0780877337. The cubic root of 40590636 is about 343.6702604685.

The spelling of 40590636 in words is "forty million, five hundred ninety thousand, six hundred thirty-six".